Sold into a ghost marriage? Four-year-old and his thuggish father go on a killing spree.

"Dad, they won't remember just by talking, let's draw it!"

Just a few days into summer vacation, Gu Niannian squatted on the threshold of the promotion station, watching her father being surrounded by a group of tractor drivers, sweating profusely with anxiety, and couldn't help but speak up.

Gu Yanqiu was struggling to explain the complex structure of the diesel engine oil pump to a burly man named Li Erniu.

"...See this plunger?"

It must be perfectly aligned with this groove; even the slightest deviation is unacceptable.

If the oil supply isn't high enough, the machine won't start!

Li Erniu scratched his head, his dark face full of confusion.

"Technician Gu, I...I can't read. I don't understand any of that stuff you're saying!"

Several tractor drivers nearby chimed in.

"Yeah, yeah, it's too complicated. I forget it as soon as I hear it."

"If only we had a picture, we'd definitely understand!"

He does not mean that.

Gu Niannian's eyes lit up instantly.

Yes! Draw it!

My father's skills are his treasure.

But all these treasures are stored in his head.

If we could turn this knowledge into pictures and words that anyone can understand, wouldn't that help even more people?

A bold idea took root and sprouted wildly in Gu Niannian's little head.

She wants to help her father create his own "Agricultural Machinery Repair Manual"!

This idea startled Gu Yanqiu.

"What? Niannian, you...you said you'd help me write a book?"

"It's not about writing a book!" Gu Niannian corrected earnestly, "It's about making a manual! Just like Aunt Su taught me to draw, I'll draw each part of the tractor one by one, and then write the simplest words next to them to tell everyone what it is, what it's used for, and how to fix it if it breaks!"

She picked up a twig from the ground and quickly sketched the shape of a gear in the mud.

"Look, like this. Draw a gear, write the word 'gear' next to it, and then write: 'If it breaks, the tractor won't move.' Uncle Li Erniu, don't you understand right away?"

Gu Yanqiu looked at the simple yet clearly defined gear on the ground.

Looking again at my daughter's incredibly bright eyes, I was deeply shaken.

How could he not have thought of that!

His daughter is not only good at remembering and reading.

Her way of thinking has far exceeded the scope of a child!

"Great!" Gu Yanqiu slapped his thigh excitedly. "Let's do it!"

Just do it!

Throughout the summer vacation, the agricultural technology extension station became the father and daughter's "war room".

During the day, Gu Yanqiu disassembled the machine, cleaned the oil-stained parts one by one, and placed them on the table.

He was responsible for explaining, using the simplest and most down-to-earth language.

The structure, working principle, and common faults of each part are explained.

"This is called a connecting rod, like a person's elbow, connecting the piston and the crankshaft. If it bends, the machine's heart will stop beating..."

Gu Niannian sat on a small stool next to her, with a large sheet of white paper that she had "borrowed" from the brigade accountant in front of her and a sharpened pencil in her hand.

She listened very attentively, and when she encountered something she didn't understand...

She immediately interrupted her father, pressing him for details until she fully understood.

Then, she began to write.

The basic sketching skills that Su Xueqing taught her played a huge role at this moment.

Light and shadow, perspective, structure...

She transformed these profound terms into precise and three-dimensional drawings of parts using a genius-like intuition.

From the engine block to a single screw washer, everything becomes clear and vivid under her pen, full of mechanical beauty.

After finishing the drawing, she added explanatory text using her childish handwriting.

She doesn't use any technical jargon; she speaks entirely in plain language.

"This thing is called a spark plug. If it gets dirty, the tractor will 'fart' and won't start. You have to unscrew it and clean it with a small brush."

"If your tire goes flat, don't panic. First, find the leak and patch it with this rubber patch, just like you would patch your own pants."

The father and daughter worked together seamlessly, one dictating and the other recording.

In the sweltering summer, the promotion station was like a giant steamer, filled with the smells of sweat and heavy engine oil.

Gu Niannian's little face was covered in black and gray stains, making her look like a little tabby cat.

But her eyes always sparkled.

This is a million times more fun than any summer homework!

A month later, a thick manual, more than thirty pages long and embodying all the hard work of the father and daughter, was finally completed.

The cover features several large characters written by Gu Niannian with a brush: "Illustrated Manual for Repairing Common Tractor Faults".

Below is a line of smaller print: Gu Yanqiu (Technology), Gu Niannian (Text and Graphics).

When Gu Yanqiu's hands trembled as she opened the handbook, which still smelled of ink,

His eyes welled up with tears.

This...this is no longer a simple booklet.

This is the culmination of half a lifetime of experience! It is the culmination of his and his daughter's wisdom!

"Let's go! Take it to Captain Cheng!"

When Cheng Tiezhu saw this manual, his mouth gaped open wide enough to fit an egg.

He looked at it over and over for a long time, then suddenly slammed his hand on the table.

"Talented! You and your daughter are both talented!"

"This stuff is a hundred times more useful than those documents and reports issued by the county!"

Without hesitation, he immediately decided, "Let's go! Come with me to the county! We'll find Old Han! We must make sure every tractor driver in the county sees this treasure!"

When Han, the station chief of the county agricultural machinery station, saw this hand-drawn manual, his reaction was even more intense than Cheng Tiezhu's.

He put on his reading glasses and read the pages carefully, one by one.

When I saw something really exciting, I couldn't help but cheer loudly!

"Great! Well drawn! Even better written!"

"Easy to understand! Intuitive and clear! This...this is exactly the kind of teaching material we at the grassroots level need!"

Old Han was so excited that his face turned red. He held the manual as if it were some priceless treasure.

"This stuff can't be wasted! I'll contact the county government and the education bureau immediately! It has to be printed! Printed in large quantities!"

Things progressed in a way that exceeded everyone's expectations.

After reviewing the original manuscript, officials from the county's education and agriculture bureaus immediately decided to print 500 copies as technical teaching materials and distribute them to all communes and production brigades in the county!

A week later, a brand-new, ink-scented "Illustrated Manual for Repairing Common Tractor Faults" was delivered to Gu Yanqiu.

Gu Niannian turned the cover and saw a line of small print in that inconspicuous corner.

[Text compiled by: Gu Niannian]

For the first time, her name was printed in lead type and appeared in an official publication.

An unprecedented sense of joy and accomplishment instantly filled her small body.

She clenched her little fists. It turns out that with her own knowledge and hard work, she really could change some things!

Old Han patted Gu Yanqiu on the shoulder, grinning from ear to ear.

"Old Gu, you're going to be famous throughout the whole county now!"

He paused, then lowered his voice and spoke meaningfully.

"It's a good thing, but we also need to watch out for those who are envious. Your handbook has really hit a nerve with some people!"

Gu Yanqiu had not yet grasped the deeper meaning behind those words.

But neither he nor Niannian knew that this little handbook, like a pebble thrown into a lake, was about to create waves far greater than they could have imagined.

What surprised them even more was that a few days later, a green jeep that they had only ever seen in movies drove straight into Chengjiawan, bumping and kicking up dust all the way!

The moment the person got off the car, a single glance from them silenced the entire village.